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4 months agoI went back and checked. That 1 in 609 was about children under 12 months who contracted measles.
From the wiki source:
Among measles cases reported to CDPH during 1988–1991, incidence of SSPE was 1:1367 for children <5 years, and 1:609 for children <12 months at time of measles disease.
Everyone should still get vaccinated for measles to prevent any of it!

You do realize how many people live in Asia, right OP?
RIGHT?!